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X-ray absorption spectroscopy study of Mn reference compounds for Mn speciation in terrestrial surface environments

Journal Article · · American Mineralogist
DOI:https://doi.org/10.2138/am-2022-8236· OSTI ID:2423739

Abstract

X-ray absorption spectroscopy (XAS) offers great potential to identify and quantify Mn species in surface environments by means of linear combination fit (LCF), fingerprint, and shell-fit analyses of bulk Mn XAS spectra. However, these approaches are complicated by the lack of a comprehensive and accessible spectrum library. Additionally, molecular-level information on Mn coordination in some potentially important Mn species occurring in soils and sediments is missing. Therefore, we investigated a suite of 32 natural and synthetic Mn reference compounds, including Mn oxide, oxyhydroxide, carbonate, phosphate, and silicate minerals, as well as organic and adsorbed Mn species, by Mn K-edge X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectroscopy. The ability of XAS to infer the average oxidation state (AOS) of Mn was assessed by comparing XANES-derived AOS with the AOS obtained from redox titrations. All reference compounds were studied for their local (<5 Å) Mn coordination environment using EXAFS shell-fit analysis. Statistical analyses were employed to clarify how well and to what extent individual Mn species (groups) can be distinguished by XAS based on spectral uniqueness. Our results show that LCF analysis of normalized XANES spectra can reliably quantify the Mn AOS within ~0.1 v.u. in the range +2 to +4. These spectra are diagnostic for most Mn species investigated, but unsuitable to identify and quantify members of the manganate and Mn(III)-oxyhydroxide groups. First-derivative XANES fingerprinting allows the unique identification of pyrolusite, ramsdellite, and potentially lithiophorite within the manganate group. However, XANES spectra of individual Mn compounds can vary significantly depending on chemical composition and/or crystallinity, which limits the accuracy of XANES-based speciation analyses. In contrast, EXAFS spectra provide a much better discriminatory power to identify and quantify Mn species. Principal component and cluster analyses of k2-weighted EXAFS spectra of Mn reference compounds implied that EXAFS LCF analysis of environmental samples can identify and quantify at least the following primary Mn species groups: (1) Phyllo- and tectomanganates with large tunnel sizes (2 × 2 and larger; hollandite sensu stricto, romanèchite, todorokite); (2) tectomanganates with small tunnel sizes (2 × 2 and smaller; cryptomelane, pyrolusite, ramsdellite); (3) Mn(III)-dominated species (nesosilicates, oxyhydroxides, organic compounds, spinels); (4) Mn(II) species (carbonate, phosphate, and phyllosilicate minerals, adsorbed and organic species); and (5) manganosite. All Mn compounds, except for members of the manganate group (excluding pyrolusite) and adsorbed Mn(II) species, exhibit unique EXAFS spectra that would allow their identification and quantification in mixtures. Therefore, our results highlight the potential of Mn K-edge EXAFS spectroscopy to assess bulk Mn speciation in soils and sediments. A complete XAS-based speciation analysis of bulk Mn in environmental samples should preferably include the determination of Mn valences following the “Combo” method of Manceau et al. (2012), EXAFS LCF analyses based on principal component and target transformation results, as well as EXAFS shell-fit analyses for the validation of LCF results. For this purpose, all 32 XAS reference spectra are provided in the Online Materials1 for further use by the scientific community.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
OSTI ID:
2423739
Journal Information:
American Mineralogist, Journal Name: American Mineralogist Journal Issue: 5 Vol. 108; ISSN 0003-004X
Publisher:
Mineralogical Society of America
Country of Publication:
United States
Language:
English

References (100)

Quantitative analysis of sulfur functional groups in natural organic matter by XANES spectroscopy journal December 2012
Evaluation of a sequential extraction procedure for the fractionation of amorphous iron and manganese oxides and organic matter in soils journal July 1994
Oxidation state and coordination of Fe in minerals: An Fe K- XANES spectroscopic study journal May 2001
Abundances of chemical elements in the Earth’s crust journal January 2006
Structural characterization of biogenic Mn oxides produced in seawater by the marine bacillus sp. strain SG-1 journal August 2005
The crystal structure of hollandite. journal January 1986
Manganese-Dependent Cleavage of Nonphenolic Lignin Structures by Ceriporiopsis subvermispora in the Absence of Lignin Peroxidase journal October 1996
Path degeneracy and EXAFS analysis of disordered materials journal October 2014
A Probabilistic Approach to Phosphorus Speciation of Soils Using P K-edge XANES Spectroscopy with Linear Combination Fitting journal April 2020
Solid phases in the cycling of manganese in eutrophic lakes: New insights from EXAFS spectroscopy journal January 1997
Competitive Microbially and Mn Oxide Mediated Redox Processes Controlling Arsenic Speciation and Partitioning journal July 2011
Multiple-Scattering EXAFS Analysis of Tetraalkylammonium Manganese Oxide Colloids journal July 1999
Neutronen- und Röntgenuntersuchungen am Manganit, MnOOH journal June 1963
Molecular-Scale Speciation of Zn and Ni in Soil Ferromanganese Nodules from Loess Soils of the Mississippi Basin journal January 2003
Structural model for the biogenic Mn oxide produced by Pseudomonas putida journal April 2006
Characterization of manganese oxide amendments for in situ remediation of mercury-contaminated sediments journal January 2018
Determination of Mn valence states in mixed-valent manganates by XANES spectroscopy journal May 2012
XRD and TEM studies on nanophase manganese oxides in freshwater ferromanganese nodules from Green Bay, Lake Michigan journal October 2016
Hierarchical Grouping to Optimize an Objective Function journal March 1963
A Comparison of the Solubility Products of Layered Me(II)–Al(III) Hydroxides Based on Sorption Studies with Ni(II), Zn(II), Co(II), Fe(II), and Mn(II) journal April 2018
Spectroscopic (XANES/XRF) characterization of contaminant manganese cycling in a temperate watershed journal August 2014
Bisulfide Reaction with Natural Organic Matter Enhances Arsenite Sorption: Insights from X-ray Absorption Spectroscopy journal October 2012
Structure disordering and thermal decomposition of manganese oxalate dihydrate, MnC2O4·2H2O journal April 2018
Crystal structure of manganese acetate tetrahydrate journal September 1974
Lead sorption efficiencies of natural and synthetic Mn and Fe-oxides journal December 2003
Characterization of the manganese oxide produced by pseudomonas putida strain MnB1 journal July 2003
The synthesis of birnessite, cryptomelane, and some other oxides and hydroxides of manganese journal December 1971
Geomicrobiology of manganese(II) oxidation journal September 2005
The mineralogy and chemistry of manganese in some Australian soils journal January 1964
Redetermination by neutron diffraction of the structure of manganese acetate tetrahydrate (MAT) journal May 1977
Significance tests on the crystallographic R factor journal May 1965
Natural speciation of Mn, Ni, and Zn at the micrometer scale in a clayey paddy soil using X-ray fluorescence, absorption, and diffraction journal August 2005
Control of Nanometer-Scale Tunnel Sizes of Porous Manganese Oxide Octahedral Molecular Sieve Nanomaterials journal April 2005
Microbial manganese oxide formation and interaction with toxic metal ions journal July 2007
Crystal structure refinement of hendricksite, A Zn- and Mn-rich trioctahedral potassium mica: A contribution to the crystal chemistry of zinc-bearing minerals journal January 1985
Characterization of the manganese core of reconstituted ferritin by x-ray absorption spectroscopy journal September 1993
Manganese Oxide Analysis in Soils by Combined X‐ray Diffraction and Selective Dissolution Methods journal July 1986
Physical speciation of trace metals in Fe–Mn concretions from a rendzic lithosol developed on Sinemurian limestones (France) journal March 2001
Characterization of foliar manganese (Mn) in Mn (hyper)accumulators using X-ray absorption spectroscopy journal September 2010
Structure of synthetic monoclinic Na-rich birnessite and hexagonal birnessite; II, Results from chemical studies and EXAFS spectroscopy journal October 1997
Influence of pH on the Reductive Transformation of Birnessite by Aqueous Mn(II) journal September 2013
Sequential Selective Extraction Procedures for the Study of Heavy Metals in Soils, Sediments, and Waste Materials—a Critical Review journal April 2010
Structure of H-exchanged hexagonal birnessite and its mechanism of formation from Na-rich monoclinic buserite at low pH journal May 2000
Characterization of Iron-Manganese Concretions in Kentucky Alfisols with Perched Water Tables journal January 1997
Structure and the Metal Support Interaction of the Au/Mn Oxide Catalysts journal July 2010
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT journal June 2005
Reductive Transformation of Birnessite by Aqueous Mn(II) journal August 2011
X-ray absorption spectroscopic study of Fe reference compounds for the analysis of natural sediments journal April 2004
Mineralogy of Fe–Mn nodules in Albeluvisols in the Carpathian Foothills, Poland journal April 2014
Characterization of manganese oxide mineralogy in rock varnish and dendrites using X-ray absorption spectroscopy journal May 2001
Geochemical changes of Mn in contaminated agricultural soils nearby historical mine tailings: Insights from XAS, XRD and, SEP journal July 2021
Speciation and fate of trace metals in estuarine sediments under reduced and oxidized conditions, Seaplane Lagoon, Alameda Naval Air Station (USA) journal November 2002
Real-space multiple-scattering calculation and interpretation of x-ray-absorption near-edge structure journal September 1998
Biogenic precipitation of manganese oxides and enrichment of heavy metals at acidic soil pH journal May 2015
A study of the chemical forms or species of manganese found in coal fly ash and soil journal October 2008
Structure of Mn and Fe oxides and oxyhydroxides: A topological approach by EXAFS journal February 1988
The structure of lithiophorite, (Al, Li)MnO2(OH)2 journal September 1952
Biogeochemical processes and arsenic enrichment around rice roots in paddy soil: results from micro-focused X-ray spectroscopy journal December 2010
In Situ Spectroscopic and Solution Analyses of the Reductive Dissolution of MnO 2 by Fe(II) journal March 2001
Trace Elements in Manganese-Iron Nodules from a Chinese Alfisol journal March 2002
Long-term litter decomposition controlled by manganese redox cycling journal September 2015
Fractionation of Cu, Pb and Zn in certified reference soils SRM 2710 and SRM 2711 using the optimized BCR sequential extraction procedure journal October 2003
Some necessary conditions for common-factor analysis journal June 1954
Arsenic sequestration by organic sulphur in peat journal November 2011
Zn sorption modifies dynamically the layer and interlayer structure of vernadite journal May 2012
Variation of preferred orientation in oriented clay mounts as a result of sample preparation and composition journal December 2009
Mineralogy and Chemistry of Manganese Oxides in Some Indiana Soils journal January 1976
A critical review of the reactivity of manganese oxides with organic contaminants journal January 2014
Structural environment and oxidation state of Mn in goethite-groutite solid-solutions journal January 2001
Manganese Speciation in Selected Agricultural Soils of Peninsular Malaysia journal February 2014
Combining Selective Sequential Extractions, X-ray Absorption Spectroscopy, and Principal Component Analysis for Quantitative Zinc Speciation in Soil journal December 2002
Formation of nano-crystalline todorokite from biogenic Mn oxides journal June 2010
The relationship between Mn oxidation state and structure in triclinic and hexagonal birnessites journal February 2018
Crystal structure refinement and reflectance measurements of hausmannite, Mn3O4 journal August 1987
Adsorption and redox reactions of heavy metals on synthesized Mn oxide minerals journal May 2007
Metal ion extraction/insertion reactions with todorokite-type manganese oxide in the aqueous phase journal September 1995
Determination of trace elements bound to soil and sediment fractions (IUPAC Technical Report) journal January 2004
Classification of Fe-bearing species from K -edge XANES data using two-parameter correlation plots journal August 2008
Powder Neutron Diffraction Study of Pyrolusite, β-MnO2 journal January 1993
Geochemistry and Mineralogy of Manganese in Soils book January 1988
Oxidative scavenging of thallium by birnessite: Explanation for thallium enrichment and stable isotope fractionation in marine ferromanganese precipitates journal May 2012
Stability of Reduced Organic Sulfur in Humic Acid as Affected by Aeration and pH journal May 2001
Impact of Birnessite on Arsenic and Iron Speciation during Microbial Reduction of Arsenic-Bearing Ferrihydrite journal September 2014
Synchrotron X-ray diffraction study of the structure and dehydration behavior of todorokite journal January 2003
Metal Speciation and Bioavailability in Contaminated Estuary Sediments, Alameda Naval Air Station, California journal September 2000
Manganese Toxicity in Barley is Controlled by Solution Manganese and Soil Manganese Speciation journal March 2012
Characteristics of Fe and Mn bearing precipitates generated by Fe(II) and Mn(II) co-oxidation with O2, MnO4 and HOCl in the presence of groundwater ions journal September 2019
Properties of Iron—Manganese Nodules from a Sequence of Eroded Fragipan Soils journal September 1993
Trace element accumulation in Mn—Fe—oxide nodules of a planosolic horizon journal March 2005
Nonmicrobial Nitrite‐to‐Nitrate Transformation in Soils journal November 1981
Peat Bogs as Hotspots for Organoarsenical Formation and Persistence journal April 2016
Soil organic carbon of mangrove forests (Rhizophora and Avicennia) of the Venezuelan Caribbean coast journal October 2016
Effects of Manganese Oxide on Arsenic Reduction and Leaching from Contaminated Floodplain Soil journal August 2016
BIOGENIC MANGANESE OXIDES: Properties and Mechanisms of Formation journal May 2004
Solid Phase Speciation of iron and Manganese in alum Shale Soils Studied by Parallel and Sequential Extraction journal March 2001
Quantitative Speciation of Heavy Metals in Soils and Sediments by Synchrotron X-ray Techniques journal January 2002
Terrestrial ferro-manganese nodules formed in limestone areas of the Ryukyu Islands Part I Major and minor constituents of terrestrial ferro-manganese nodules. journal January 1981
Managanese Oxide Minerals in Nodules of Two Soils of Texas and Alabama journal September 1986
Spectroscopic Speciation and Quantification of Lead in Phosphate-Amended Soils journal January 2004
Arsenic Adsorption and Oxidation at Manganite Surfaces. 1. Method for Simultaneous Determination of Adsorbed and Dissolved Arsenic Species journal May 2000

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